"ordinal adjective" meaning in English

{
  "forms": [
    {
      "form": "ordinal adjectives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ordinal adjective (plural ordinal adjectives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Adjectives",
          "orig": "en:Adjectives",
          "parents": [
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An ordinal number used as an adjective."
      ],
      "id": "en-ordinal_adjective-en-noun-gWoT2QPk",
      "links": [
        [
          "ordinal number",
          "ordinal number"
        ]
      ],
      "related": [
        {
          "word": "cardinal adjective"
        }
      ]
    }
  ],
  "word": "ordinal adjective"
}

{
  "forms": [
    {
      "form": "ordinal adjectives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ordinal adjective (plural ordinal adjectives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "cardinal adjective"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Adjectives"
      ],
      "glosses": [
        "An ordinal number used as an adjective."
      ],
      "links": [
        [
          "ordinal number",
          "ordinal number"
        ]
      ]
    }
  ],
  "word": "ordinal adjective"
}